27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

Storage Resource Managers at Brookhaven

27 Sep 2004, 17:10
20m
Theatersaal (Interlaken, Switzerland)

Theatersaal

Interlaken, Switzerland

oral presentation Track 4 - Distributed Computing Services Distributed Computing Services

Speaker

Ofer RIND

Description

Providing Grid applications with effective access to large volumes of data residing on a multitude of storage systems with very different characteristics prompted the introduction of storage resource managers (SRM). Their purpose is to provide consistent and efficient wide-area access to storage resources unconstrained by their particular implementation (tape, large disk arrays, dispersed small disks). To assess their viability in the context of the US Atlas Tier 1 facility at Brookhaven, two implementations of SRM were tested: dCache (FNAL/DESY joint project) and HRM/DRM (NERSC Berkeley). Both systems included a connection to the local HPSS mass data store providing Grid access to the main tape repository. In addition, dCache offered storage aggregation of dispersed small disks (local drives on computing farm nodes). An overview of our experience with both systems will be presented, including details about configurations, performance, inter-site transfers, interoperability and limitations.

Primary authors

O. Rind (BROOKHAVEN NATIONAL LABORATORY) R. Popescu (BROOKHAVEN NATIONAL LABORATORY) S. O'Hare (BROOKHAVEN NATIONAL LABORATORY) Z. Liu (BROOKHAVEN NATIONAL LABORATORY)

Presentation Materials

PDF